gfxPlatformGtk.h - mozsearch

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef GFX_PLATFORM_GTK_H

#define GFX_PLATFORM_GTK_H

#include "gfxPlatform.h"

#include "nsAutoRef.h"

#include "nsTArray.h"

#include "mozilla/gfx/gfxVars.h"

#ifdef MOZ_X11

struct _XDisplay;

typedef struct _XDisplay Display;

#endif  // MOZ_X11

class gfxPlatformGtk final : public gfxPlatform {

  friend class gfxPlatform;

 public:

  gfxPlatformGtk();

  virtual ~gfxPlatformGtk();

  static gfxPlatformGtk* GetPlatform() {

    return (gfxPlatformGtk*)gfxPlatform::GetPlatform();

  void ReadSystemFontList(mozilla::dom::SystemFontList* retValue) override;

  already_AddRefed<gfxASurface> CreateOffscreenSurface(

      const IntSize& aSize, gfxImageFormat aFormat) override;

  nsresult GetFontList(nsAtom* aLangGroup, const nsACString& aGenericFamily,

                       nsTArray<nsString>& aListOfFonts) override;

  void GetCommonFallbackFonts(uint32_t aCh, Script aRunScript,

                              eFontPresentation aPresentation,

                              nsTArray<const char*>& aFontList) override;

  bool CreatePlatformFontList() override;

  static int32_t GetFontScaleDPI();

  static double GetFontScaleFactor();

  gfxImageFormat GetOffscreenFormat() override;

  bool SupportsApzWheelInput() const override { return true; }

  void FontsPrefsChanged(const char* aPref) override;

  bool SupportsPluginDirectBitmapDrawing() override { return true; }

  bool AccelerateLayersByDefault() override;

  already_AddRefed<mozilla::gfx::VsyncSource> CreateGlobalHardwareVsyncSource()

      override;

  bool IsX11Display() { return mIsX11Display; }

  bool IsWaylandDisplay() override {

    return !mIsX11Display && !gfxPlatform::IsHeadless();

  static bool CheckVariationFontSupport();

 protected:

  void InitAcceleration() override;

  void InitX11EGLConfig();

  void InitDmabufConfig();

  bool InitVAAPIConfig(bool aForceEnabledByUser);

  void InitPlatformGPUProcessPrefs() override;

  void InitWebRenderConfig() override;

  void BuildContentDeviceData(mozilla::gfx::ContentDeviceData* aOut) override;

 private:

  nsTArray<uint8_t> GetPlatformCMSOutputProfileData() override;

  bool mIsX11Display;

};

// Wrapper for third party code (WebRTC for instance) where

// gfxVars can't be included.

namespace mozilla::gfx {

bool IsDMABufEnabled();

#endif /* GFX_PLATFORM_GTK_H */